The amplifier is designed to match the acoustic
parameters of the speakers used in the combination. The
to this matching allows a good definition for audiophile sound
reproduction. The total amplifier setup contains several power
amplifiers (integrated and discrete) but also the control through a
The concept is based on active filtering of each speaker in the total system.
Block diagram of amplifier with speakersThe incoming audio signal (i.e. CD-player) is processed through audio opamps. The amplifier incorporates a four input selector. After the selection, the audio signal is processed through the volume and balance controller. Then, the signal is feeded towards the electronic filters where a summed signal is used for the bass filter response. The bass filter exists of multiple filters including a bass correction network. The actual stereo signal is used for the satellite speakers where a two-speaker system is used. Each speaker is filtered electronically.
The remainder of this section discusses the analog amplifier stages, MCU + software and the power amplifier.